/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.axis2.testutils;

import java.io.IOException;
import java.net.ServerSocket;

public final class PortAllocator {
    private PortAllocator() {}
    
    /**
     * Allocate a TCP port.
     * 
     * @return the allocated port
     */
    public static int allocatePort() {
        try {
            ServerSocket ss = new ServerSocket(0);
            int port = ss.getLocalPort();
            ss.close();
            return port;
        } catch (IOException ex) {
            throw new Error("Unable to allocate TCP port", ex);
        }
    }
}
